Insecticide

Umm - Fipronil was banned for agricultural use in the EU and UK in 2013 because of concerns about its persistence in the environment, killing insects far beyond and for long after its original application. The only licensed products that contain Fipronil in the UK are veterinary pet treatments for fleas and ticks (and tbh even those are, from an environmental point of view, problematic). Although it looks as if this product has been imported legally from the US (hence its high price), whether it is legal to use this in a garden setting in the UK is arguable, and because of the agricultural ban the broad labelling "for outdoor use" is not accurate for anyone buying within the EU and UK.